Bought this frag about three weeks ago. They were opened up and fine for over two weeks. All of a sudden, they closed up and haven't opened since. Is there something I can treat them with, or is this now just a piece of purple LR in my tank?
look for pests like sundial snails, zoo eating nudibranches, zoapox,etc.....they hide very well and can be very small...not really a ton you can do besides a freshwater dip or dip in lugols iodine.
